维生素A防治小儿反复呼吸道感染疗效观察

我科近2年来应用维生素A防治反复呼吸道感染儿30例，取得良好疗效，现报告如下。l对象与分析1．1对象：随机抽取防治组和对照组各30例，年龄l～2岁。每年上感6次或肺炎3次以上者。1．2方法：防治组用维生素A25OU，…，共用3个月，总量20～30万lip。树根组作一般常规预防。1．3疗效判定：1．3．1显效：服药后上感染数比用药前减少4次以上，肺炎次数减少2次以上f1．3．2有效：上感减少3次，肺炎减少1次；1．3．3无效：上感减少2次下，肺炎次数无变化。1．4结果见表。表防治组与对照组疗效比较（％）2讨论小儿呼吸道反复感染的发病机理与维生…     

抗蚊虫疫苗的研究进展

蚊虫属昆虫纲、双翅目、长角亚目中的蚊科，除叮刺、骚扰人类外，全世界每年因蚊虫传播造成的病例高达7亿。平均每17个人中就有1人死于蚊虫造成的疾病，疟疾、丝虫病、登革热等都是由蚊虫传播的，其中仅疟疾就造成每年300万人死亡。随着人类活动的加剧，在某些地区这些传染病比30年前更为严重。控制并根除这些传染病的     

浅谈电子文档的原始性和真实性及法律证据作用

该文针对电子文件或档案的原始性真实性与电子档案的法律证据作用,参考了最新的研究结果,并提出了自己的思考,逐步探讨了它们的涵义及关系.     

男子周期性鼻衄案

患者王××,男,22岁,本乡旺河头村农民。1985年4月19日诊。患周期性鼻衄已半年,约28天一次,每次3—4天,血色鲜红,量不甚多,曾用止血敏、安络血等药物治疗,其效不显,而前来我院诊治。刻下鼻衄初作,点滴而下,色红不紫,伴头晕头痛,口干口苦,饮食不     

甲亢性周期麻痹23例分析

目的：探讨甲亢性周期性麻痹（TPP）的临床特点。方法：对23例TPP进行回顾性分析和总结。结果：TPP占同期住院甲亢患者的6.2%,男女比例22∶1,21-40岁为发病高峰年龄,肌无力发作时23例血钾均低于正常。结论：TPP以肌无力伴低钾血症为其临床特点,及早诊治是关键。TPP患者的治疗应在补钾的同时加用抗甲状腺药物,可减少复发。对重度TPP进行心电监护、补钾、抗心律失常和呼吸机辅助呼吸是抢救成功的重要措施。     

宫腔镜引导疏通输卵管治疗阻塞性不孕

目的在宫腔镜引导下疏通输卵管治疗阻塞性不孕。方法选择经子宫输卵管造影证实不同程度的输卵管阻塞120例，于月经干净3-7d进行输卵管疏通术治疗（地塞米松注射剂5mg，庆大霉素注射剂8万U，糜蛋白酶注射剂4000U）。结果单侧输卵管治疗有效率83．9％，有改善16．1％。双侧输卵管阻塞治疗有效率51．4％，有改善18．9％，无效29．7％。结论官腔镜引导下能准确判断左右两侧输卵管开口的位置及治疗情况，提高了一次疏通命中率及治愈率，是一种微创、安全、有效的治疗方法。     

低蛋白饮食对环孢素A肾病大鼠肾间质纤维化的作用

Objective To investigate whether low-protein diet has protective effect on the progression of renal interstitial fibrosis in rats with cyclosporine A (CsA)-induced nephropathy. Methods Eighteen male Sprague-Dawley rats were randomly divided into three groups (6 rats in each group). The rats in control group (C group) received common diet; in model group (M group) low-salt diet; in intervention group (Ⅰ group) low-salt and low-protein diet. After diet adaptation period of one week, the rats in C group received subcutaneous injection of olive oil 1 mg/kg daily for 5 weeks, while M group and Ⅰ group subcutaneous injection of CsA (diluted into 25 g/L with olive oil) 1 ml/kg for 5 weeks. All the rats were sacrificed at the end of the 5th week. The food-intake and body weight were measured daily. The creatinine clearance (Ccr) was examined before rats were sacrificed. The semi-quantitative pathological analysis on kidney sections was performed. The mRNA and protein expression of transforming growth factor-β1 (TGF-βI) and type Ⅰ collagen (Col Ⅰ) in kidney tissue was determined with real time PCR and immunohistochemical staining, respectively. Results The food-intake and body weight of rats in M and I groups were significantly lower than those in C group (P<0.05). Compared with C group, the Ccr levels in M and Ⅰ groups were significantly reduced [(0.65±0.15) ml/min, (0.40+0.13) ml/min vs (1.55±0.29) ml/min, P<0.05], the relative fibrosis areas of kidney interstitium in M and I groups were significantly increased (3.60%±0.46%, 3.26%±0.75% vs 0.44%±0.24%, P<0.05), the mRNA and protein expression of TGF-β1 in M and I group was significantly up-regulated (by 2.6 and 3.1 times in mRNA and by 1.5 and 1.6 times in protein, respectively, P<0.05), and the mRNA and protein expression of Col Ⅰ in M and I groups was also significantly up-regulated (by 3.0 and 3.5 times in mRNA and by 2.3 and 2.1 times in protein, respectively, P<0.05). There were no significant differences between M and I groups in every parameters above-mentioned except the rat body weight and Ccr. Both the body weight and Ccr in Ⅰ group were significantly lower than those in M group (P<0.05). Compared with C group, the urine osmotic pressure in M group and in I group were deceased (for M group, P>0.05; for I group, P<0.05). Compared with C group, the serum cholesterol levels in M and I groups were significantly increased (P<0.05), and the serum phosphorus level in I group was significantly decreased (P<0.05). The levels of serum albumin and serum calcium of all three groups had no statistical differences (P>0.05). Conclusion Low-protein diet has no renoprutective effects on the rat model of cyclosporin A nephropathy, on the contrary, may induce body weight loss.     

子宫颈环型电切除治疗宫颈病变78例分析

目的探讨宫颈环型电切术(LEEP)治疗宫颈病变的可行性。方法对门诊78例宫颈肥大、糜烂、赘生物、囊肿患者进行LEEP治疗,于术后2个月观察疗效。结果术后2个月治愈77例(98.7%),显效1例(1.3%)。结论LEEP对宫颈病变是一种快速、安全、微创、有效的治疗方法。     

丹参注射液对自发性高血压大鼠左室肥厚的影响

目的：探讨丹参对自发性高血压大鼠（SHR）左室肥厚的影响。方法：18只引种繁殖的雄性SHR随机分成三组，每组6只。对照1组育至第8周处死；丹参组从第8周给药，丹参粉针剂1g／（kg.d），腹腔注射，用药10周处死；对照2组从第8周开始用相同容量蒸馏水腹腔注射，第18周处死。测量各组大鼠尾动脉收缩压（SBP）及左心室重量指数（LVMI），应用HE、VG染色，结合计算机图像分析技术，检测心肌细胞的直径（TDM）和面积（CA）、心肌组织胶原体积比例（CVF）、血管周围胶原面积与管腔面积比例（PVCA）。三组间各指标进行显著性检验。结果：与对照1组比较，对照2组的SBP、LVMI、TDM、CA、CVF、PVCA显著增加；丹参组除SBP升高外，余指标与对照1组比较，无统计学意义；与对照2组比较差异有显著性意义，P〈0.05。结论：丹参注射液能预防自发性高血压大鼠左室肥厚的形成。